CN204550198U - A kind of SBR equipment realizing mud rapid subsidence - Google Patents
A kind of SBR equipment realizing mud rapid subsidence Download PDFInfo
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- CN204550198U CN204550198U CN201520107079.8U CN201520107079U CN204550198U CN 204550198 U CN204550198 U CN 204550198U CN 201520107079 U CN201520107079 U CN 201520107079U CN 204550198 U CN204550198 U CN 204550198U
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Abstract
The utility model proposes a kind of SBR equipment realizing mud rapid subsidence, inlet unit, aeration unit, dosing unit, the sequence batch mode control unit of comprise cylindricality reactor body, intaking for treatment sewage, water inlet pipe enters cylindricality reactor body, and the aerator that inlet pipe connects is arranged in cylindricality reactor body; Dosing unit comprises the Scatula be positioned at outside cylindricality reactor body, and Scatula is connected with dosing volume pump, enters medicine valve and chemical feed pipe, and chemical feed pipe enters cylindricality reactor body.The utility model uses the nano flocculant possessing organic charge, cotton-shaped active sludge in biochemical reaction tank and second pond is condensed into particulate form rapidly, condensation product relies on the electrode effect of nanocrystal to condense fast, thus accelerate the settling velocity of suspended substance, shorten active sludge sedimentation time, sludge concentration in reactor can be improved, improve the utilization rate of tank volume of reactor.
Description
Technical field
The utility model belongs to field of waste water treatment, is specifically related to a kind of equipment and method of sequencing batch active sludge waste water treatment process.
Background technology
Sequencing batch reactor (SBR) is in same reactor, is realized the whole process of traditional activated sludge process by alternately water inlet in time, aeration, precipitation, draining and standing five operations.SBR method should be used for medium and small town sewage and Industrial Wastewater Treatment engineering.According to statistics, in built 2716 urban wastewater treatment firms in the whole nation in 2011, the Sewage Plant more than 17.7% is had to have employed SBR and deformation technique thereof.Most sbr reactor device is all become water level to run, water level in the whole service cycle in sbr reactor device is not in the level of 100% all the time, water inlet and strain water and leave standstill period part pond hold be idle, the operation scheme of sbr reactor device reduces reactor service efficiency to some degree, thus the working hour efficiency of microorganism can be lower, finally affects effluent quality.
Along with China's rapid economic development and growth in the living standard, I is increasing day by day many sewage water yield, and many municipal sewage treatment scales are not enough, running condition that sewage work is generally in " excess load ".Constant overload runs and biological processing unit Sludge Property is deteriorated, treatment effect decline, Mud up-floating and then affect the settling property of mud, finally causes water outlet cannot stably reaching standard.Meanwhile, governments at all levels of China have higher requirement to water pollution control standard, and therefore, current most of sewage work faces technological transformation, promotes the Tough questions of cleanup standard.Part of contaminated water treatment plant adopts chemical agents such as adding PAM, Polyferric Sulfate, poly-aluminium as emergent means, realizes the mud rapid precipitation of urban wastewater treatment firm, improves effluent quality.But the not only dosing that adds of these traditional flocculants greatly, increases running cost; And increase mud generation, and then follow-up sludge treatment load is caused to increase; In addition, residual ion concentration is higher, may cause secondary pollution problem.
Utility model content
For the deficiencies in the prior art part, the purpose of this utility model proposes a kind of SBR equipment realizing mud rapid subsidence for municipal sewage treatment.
The technical scheme realizing the utility model object is:
Realize a SBR equipment for mud rapid subsidence, comprise cylindricality reactor body, for treatment sewage water inlet inlet unit, aeration unit, dosing unit, 75% draining than time outlet valve, 50% draining than time outlet valve, sequence batch mode control unit,
Described inlet unit comprises intake pump, with the water inlet pipe of water intaking valve and even water distributor, described water inlet pipe enters cylindricality reactor body, and the even water distributor that water inlet pipe connects is arranged on cylindricality reactor body bottom;
Described aeration unit comprises the gas blower be arranged on outside cylindricality reactor body, gas blower connects with the inlet pipe of intake valve and aerator, described inlet pipe enters cylindricality reactor body, the aerator that inlet pipe connects is arranged in cylindricality reactor body, is positioned at the below of described even water distributor;
Described dosing unit comprises the Scatula be positioned at outside cylindricality reactor body, and Scatula is connected with dosing volume pump, enters medicine valve and chemical feed pipe, and described chemical feed pipe enters in cylindricality reactor body,
Described sequence batch mode control unit also comprises an electric control box, Two-way Cycle digital display time relay and intermediate relay are set in electric control box, described Two-way Cycle digital display time relay connects intermediate relay, and described intermediate relay connects described water intaking valve, intake valve, enters medicine valve.
Wherein, described even water distributor is made up of many water distributors, and described water distributor is arranged as grid type, barrier type, radiation or herringbone, and two arrangement water holes arranged down by water distributor, the medullary ray of water distributing pore and plummet angle at 45 °.
Two arrangement water holes are preferably both sides and are arranged symmetrically with, and reach water distribution uniformity.
Preferably, described aerator is microporous aeration disc.
Further, be provided with agitator in described Scatula, described chemical feed pipe is perforated tube, and the medicine feeding hole opened in downward direction is arranged.
Wherein, described cylindricality reactor body top is provided with overflow port valve, and bottom is provided with mud valve.
Further, described cylindricality reactor body is provided with the first draining than time outlet valve and the second draining than time outlet valve; Described first draining than time outlet valve be arranged on cylindricality reactor body 70-80% At The Height from bottom to top, described second draining than time outlet valve be arranged on cylindricality reactor body 40-60% At The Height; Two water discharge valves are all connected with intermediate relay.Whole Controlling System divides automaticmanual two portions, can either realize unattended fully automatic operation, also can be adjusted to manual mode and carry out detecting, revising.
Apply the method for device processes municipal effluent described in the utility model, comprising:
Step one, open water intaking valve and intake pump, this step flooding quantity controls the 55-65% in treatment capacity;
Step 2, after step one is intake, close inlet valve and intake pump, open aeration valve and gas blower, air enters reactor by the micro-hole aerator of reactor bottom simultaneously, and this step aeration time controls the 55-65% for total aeration time;
Step 3, again opens water intaking valve and intake pump, runs under the environment identical with step one, and this time flooding quantity controls the 27-33% in treatment capacity;
Step 4, closes inlet valve and intake pump, opens aeration valve and gas blower simultaneously, runs under the environment identical with step 2, and this time aeration time controls the 27-33% for total aeration time;
Step 5, again opens water intaking valve and intake pump, runs under the environment identical with step one, and this time flooding quantity controls the 8-12% in treatment capacity;
Step 6, closes inlet valve and intake pump, opens aeration valve and gas blower simultaneously, runs under the environment identical with step 2, and this time aeration time controls the 8-12% for total aeration time;
Step 7, closes gas blower and aeration valve, and active sludge, under nano flocculant effect, forms macrobead flco, precipitation 4-8 minute;
Step 8, opening water discharge valve, draining also leaves standstill 4-8 minute.A cycle of operation is completed to this.Repeat above-mentioned steps more afterwards.
In step one, after opening water intaking valve and intake pump, sewage enters reactor by reactor bottom even water distributor, with lower lift velocity by bottom activated sludge layer, forms anaerobic environment, realizes denitrification denitrogenation and anaerobic phosphorus release reaction.Flooding quantity flooding time controls, and flooding time preferably controls into total flooding time 60%.
Step 2 opens aeration valve and gas blower forms aerobic environment, realizes organic removal, the oxidation of ammonia nitrogen and aerobic suction phosphorus reaction.
In described step 6, stop first 2 minutes of aeration at gas blower, open dosing valve and dosing pump, control dosing within 1 minute and complete, then close dosing pump and dosing valve, institute's adding medicine is flocculation agent.
Described flocculation agent can be selected from nano level Powdered polyacrylamide, Nano chitosan, nano polysilicon acid, one or more in nano polyaluminium chloride.Active sludge rapid subsidence can be realized and suppress sludge bulking simultaneously;
The utility model can reach in 5 minutes and precipitate.
The beneficial effects of the utility model are:
Use the nano flocculant having possessed special organic charge the cotton-shaped active sludge in biochemical reaction tank and second pond can be condensed into particulate form rapidly in the utility model, condensation product relies on the electrode effect of nanocrystal to condense fast, thus accelerate the settling velocity of suspended substance, and then shorten active sludge sedimentation time, namely the reaction time of sequence batch (master mode is shortened, sludge concentration in reactor can be improved simultaneously, improve the utilization rate of tank volume of reactor; In addition, adopt pulse water-feeding, control the recirculation of anaerobism water inlet, aerobic aeration, can by the nitrification liquid of previous circulation with originally under anaerobic environment, realize denitrification for Removing Nitrogen, raising denitrification effect; In addition anaerobic-aerobic environmental benefits is in the reaction releasing phosphorus and suction phosphorus, and nano flocculant also can play the effect of chemical dephosphorization, the efficient treatment effect of continual and steady denitrogenation dephosphorizing under therefore can realizing overload condition.
Accompanying drawing explanation
Fig. 1 is the structural representation realizing the SBR equipment of mud rapid subsidence of the embodiment of the present invention;
Fig. 2 is the even water distributor structural representation of the embodiment of the present invention;
Fig. 3 is the front view of even water distributor;
Fig. 4 is a water distributor front view;
Fig. 5 is the A-A face sectional view of Fig. 4.
In figure, 1-main reactor; 2-intake pump; 3-water intaking valve; 4-even water distributor; 5-gas blower; 6-intake valve; 7-micro-hole aerator; 8-75% draining than time water discharge valve; 9-50% draining than time water discharge valve; 10-overflow port valve; 11-chemical feed pipe; 12-enters medicine valve; 13-dosing volume pump; The Scatula that 14-band stirs; 15-mud valve; 16-sequence batch mode control unit; 17-water distributor; 18-water distributing pore.
Embodiment
Now with following examples, the utility model is described, but is not used for limiting scope of the present utility model.The means used in embodiment, if no special instructions, all use the means of this area routine.
Embodiment 1:
See Fig. 1, a kind of SBR equipment realizing mud rapid subsidence, comprise cylindricality reactor body 1, inlet unit for treatment sewage water inlet, aeration unit, dosing unit, 75% draining than time outlet valve 8,50% draining than time outlet valve 9, sequence batch mode control unit
Inlet unit comprises intake pump 2, with the water inlet pipe of water intaking valve 3 and even water distributor 4, described water inlet pipe enters cylindricality reactor body 1, and the even water distributor 4 that water inlet pipe connects is arranged on cylindricality reactor body 1 bottom; Cylindricality reactor body 1 top is provided with overflow port valve 10, and bottom is provided with mud valve 15.
Aeration unit comprises the gas blower 5 be arranged on outside cylindricality reactor body 1, gas blower 5 connects inlet pipe with intake valve 6 and aerator 7, described inlet pipe enters cylindricality reactor body 1, the aerator 7 that inlet pipe connects is arranged in cylindricality reactor body 1, is positioned at the below of described even water distributor 4; Aerator 7 is microporous aeration disc.
Described dosing unit comprises the Scatula 14 be positioned at outside cylindricality reactor body 1, Scatula 14 is connected with dosing volume pump 13, enters medicine valve 12 and chemical feed pipe 11, described chemical feed pipe 11 enters in cylindricality reactor body 1, agitator is provided with in Scatula 14, chemical feed pipe is perforated tube, and the medicine feeding hole opened in downward direction is arranged.
Sequence batch mode control unit comprises an electric control box 16, Two-way Cycle digital display time relay and intermediate relay are set in electric control box, described Two-way Cycle digital display time relay connects intermediate relay, described intermediate relay connects described water intaking valve 3, intake valve 6, enter medicine valve 12,75% draining than time outlet valve 8 and 50% draining than time outlet valve 9.Whole Controlling System divides automaticmanual two portions, can either realize unattended fully automatic operation, also can be adjusted to manual mode and carry out detecting, revising.
See Fig. 2 to Fig. 5, even water distributor 4 is made up of many water distributors 14, and water distributor 14 is arranged as barrier type, body is opened two arrangement water holes down, and the medullary ray of water distributing pore and perforated pipe medullary ray angle at 45 °, both sides are arranged symmetrically with, and reach water distribution uniformity.
The equipment of application the present embodiment, main reactor effective working volume 3L.Sewage treatment process is:
Step one, dilutes nano flocculant with the Dilution ratio of 1:100 in advance in Scatula 14, and turn on agitator makes it mix, and then stops stirring.By nano flocculant dilution so that control dosage, reduce because of stoste dosage larger error very little.
Step 2, raw waste water is delivered in main reactor 1 through intake pump 2 by bottom, under anaerobic, controlling flooding time is 60% of total flooding time, and namely flooding quantity is 60% of every batch of water inlet total amount, then closes intake pump 2, open gas blower 5 simultaneously, air enters reactor through micropore aeration pipe 7, forms aerobic environment, and controlling aeration time is 60% of total aeration time;
Step 3, closes gas blower 5, again opens intake pump 2, and controlling flooding time is 30% of total flooding time, and namely flooding quantity is 30% of every batch of flooding quantity, then closes intake pump 2, again opens gas blower 5, and controlling aeration time is 30% of total aeration time;
Step 4, closes gas blower 5 again, opens intake pump 2, and controlling flooding time is 10% of total flooding time, and namely flooding quantity is 10% of every batch of flooding quantity, then closes intake pump 2, again opens gas blower 5, and controlling aeration time is 10% of total aeration time;
Step 5, before the aeration of step 4 terminates when 2 minutes, open dosing pump 13, the ratio being 20 μ l stoste/L sewage according to chemical feeding quantity adds nano flocculant, and time of administration controls in 1 minute, closes dosing pump 13;
Step 6, after aeration terminates, closes gas blower 5, staticly settles 5 minutes, realize solid-liquid separation;
Step 7, after precipitation terminates, Open valve 9, discharges the supernatant liquor after process, then leaves standstill, control 5 minutes total time, now form one-period, leaves standstill after terminating and opens intake pump, enter next loop cycle.
Adopt the technical scheme of this example, effect is as follows:
Average inlet COD concentration is 240mg/L, effluent COD concentration is less than 50mg/L, average ammonia nitrogen 23mg/L of intaking, and water outlet ammonia nitrogen is less than 3mg/L, average water inlet TN concentration is 32mg/L, water outlet TN concentration is less than 15mg/L, and average water inlet TP concentration is 3.7mg/L, and water outlet TP concentration is less than 0.5mg/L, water outlet SS is less than 10mg/L, sludge settling property SVI average 50, sedimentation time is less than 5 minutes, and water discharge time is less than 5 minutes.
The sedimentation time 1h of contrast conventional SBR technology and water discharge time 1.0 ~ 1.5h, in shorter sedimentation time and water discharge time, has ensured wastewater treatment efficiency, embodies the significant advantage on rapid subsidence raising capacity utilization.
Above embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various modification that the common engineering technical personnel in this area make the technical solution of the utility model and improvement, all should fall in protection domain that claims of the present utility model determine.
Claims (6)
1. realize a SBR equipment for mud rapid subsidence, it is characterized in that, inlet unit, aeration unit, dosing unit, the sequence batch mode control unit of comprise cylindricality reactor body (1), intaking for treatment sewage,
Described inlet unit comprises intake pump (2), with the water inlet pipe of water intaking valve (3) and even water distributor (4), described water inlet pipe enters cylindricality reactor body (1), and the even water distributor (4) that water inlet pipe connects is arranged on cylindricality reactor body (1) bottom;
Described aeration unit comprises and is arranged on cylindricality reactor body (1) gas blower outward (5), gas blower (5) connects with the inlet pipe of intake valve (6) and aerator (7), described inlet pipe enters cylindricality reactor body (1), the aerator (7) that inlet pipe connects is arranged in cylindricality reactor body (1), is positioned at the below of described even water distributor (4);
Described dosing unit comprises and is positioned at cylindricality reactor body (1) Scatula outward (14), Scatula (14) is connected with dosing volume pump (13), enters medicine valve (12) and chemical feed pipe (11), described chemical feed pipe (11) enters in cylindricality reactor body (1)
Described sequence batch mode control unit also comprises an electric control box (16), Two-way Cycle digital display time relay and intermediate relay are set in electric control box, described Two-way Cycle digital display time relay connects intermediate relay, and described intermediate relay is electrically connected described water intaking valve (3), intake valve (6), enters medicine valve (12).
2. SBR equipment according to claim 1, it is characterized in that, described even water distributor is made up of many water distributors, and described water distributor is arranged as grid type, barrier type, radiation or herringbone, two arrangement water holes arranged down by water distributor, the medullary ray of water distributing pore and plummet angle at 45 °.
3. SBR equipment according to claim 1, is characterized in that, described aerator (7) is microporous aeration disc.
4. SBR equipment according to claim 1, is characterized in that, be provided with agitator in described Scatula (14), described chemical feed pipe is perforated tube, and the medicine feeding hole opened in downward direction is arranged.
5., according to the arbitrary described SBR equipment of claim 1-4, it is characterized in that, described cylindricality reactor body (1) top is provided with overflow port valve (10), and bottom is provided with mud valve (15).
6., according to the arbitrary described SBR equipment of claim 1-4, it is characterized in that, described cylindricality reactor body (1) is provided with the first draining than time outlet valve (8) and the second draining than time outlet valve (9); Described first draining than time outlet valve (8) be arranged on cylindricality reactor body (1) 70-80% At The Height from bottom to top, described second draining than time outlet valve (9) be arranged on cylindricality reactor body (1) 40-60% At The Height; Two water discharge valves are all connected with described intermediate relay.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520107079.8U CN204550198U (en) | 2015-02-13 | 2015-02-13 | A kind of SBR equipment realizing mud rapid subsidence |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520107079.8U CN204550198U (en) | 2015-02-13 | 2015-02-13 | A kind of SBR equipment realizing mud rapid subsidence |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105984951A (en) * | 2015-02-13 | 2016-10-05 | 清华大学 | SBR device for realizing rapid sludge settlement, and application thereof |
| CN106673092A (en) * | 2017-03-03 | 2017-05-17 | 长葛市怡盛蜂业有限公司 | Rotary slice type water decanter capable of charging medicinal liquid |
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2015
- 2015-02-13 CN CN201520107079.8U patent/CN204550198U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105984951A (en) * | 2015-02-13 | 2016-10-05 | 清华大学 | SBR device for realizing rapid sludge settlement, and application thereof |
| CN106673092A (en) * | 2017-03-03 | 2017-05-17 | 长葛市怡盛蜂业有限公司 | Rotary slice type water decanter capable of charging medicinal liquid |
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